Finding the Third Proportional to 847,139 and 1,860,166

Step by Step Solution

1. Step 1: Write the proportion equation
   847,139 : 1,860,166 = 1,860,166 : x
2. Step 2: Convert to fraction form
   847,139/1,860,166 = 1,860,166/x
3. Step 3: Cross multiply
   847,139x = 1,860,166 × 1,860,166
4. Step 4: Simplify right side
   847,139x = 3,460,217,547,556
5. Step 5: Solve for x
   x = 3,460,217,547,556/847,139
6. Step 6: Final answer
   x = 4,084,592.43